Scattering at Planckian Energies

Details Scattering at Planckian Energies Scattering at Planckian Energies

1991-10-07

arxiv.org/abs/hep-th/9110017v1

Nucl.Phys. B371 (1992) 246-268

Physics

High Energy Physics

High Energy Physics - Theory

26 pages

Scientific paper

10.1016/0550-3213(92)90236-5

We give a systematic analysis of forward scattering in 3$+$1-dimensional quantum gravity, at center of mass energies comparable or larger than the Planck energy. We show that quantum gravitational effects in this kinematical regime are described by means of a topological field theory. We find that the scattering amplitudes display a universal behaviour very similar to two dimensional string amplitudes, thereby recovering results obtained previously by 't Hooft. Finally, we discuss the two-particle process in some detail.

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